The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 19, 1996
Filed:
Mar. 21, 1995
Applicant:
Inventors:
Patricia B Williams, Norfolk, VA (US);
John D Sheppard, Cape Charles, VA (US);
Assignee:
Eastern Virginia Medical School, Norfolk, VA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61F / ; A61K / ; A61L / ;
U.S. Cl.
CPC ...
424423 ; 424427 ; 424443 ; 424445 ; 424449 ;
Abstract
Lesions supplied by abnormal aggregations of vascular tissue or neovascular tissues are treated with photodynamic therapy by application of photosensitizing agent followed by precisely directed and calibrated laser activation to induce photothrombosis within target vascular tissue. The treatment forms a blood clot within the supply vessels thereby reducing the blood supply to the target lesion. Treated tissues atrophy or recede with low regrowth of vessels. The lower energy levels required significantly reduce damage to the surrounding tissues.